Fumigating package



Sept. 2l, 1948. A, I GALLQWAY 2,449,695

FUMIGATING PACKAGE Filed sept. 15, 194s lame, +Pwu,

and `emit Patented Sept. 21, 1948 .fz-,Massa i noivneaffrmo mennenArthureL-wGallowayfliouisviile, Ky., assigner-to TobaceoBwPtfQducts and.GheinieaLCornoratierty Louisville, glia., a corporation `,ntDelaware l,Applications'optomber 13, 1946,'l SerialNouGiGWil f t sioiaimsi(Commits.)

V lil-iis invention: `relate-s-. to finnisatineapaclsf age and anigniting device and more f In fumigatme packages iitbisatvpenit.isvfoiis tomary togignitegthebpdit of combustible maten rial in thecontainer at one end or surface and to permit evolutionio-f the1fumigating gases from thatsu-rfacedirectly to the atmosphere. As thecombustion proceeds through the body the evolved fumigating gases mustpass through the highly heated portion of.theecontainerradjacent thealreadyiburned portion of the `body and when `.the 1,f:,orr1lo1,is tionwleaves an ash andftlie gosen-must pass through this hot ash and thefumlgating agent may be wholly or partly destroyed by the hightemperature to Which it is subjected.

An object of my invention is to ignite the body of combustible materialin the container and lead the fumigating gases and vapors off from thecontainer in such a way that they are not subjected to the destructivehigh temperature conditions created by the combustion.

In accordance with my invention I provide a container and a lling ofcombustible material similar to the container and filling compositiondescribed in U. S. Patent No. 2,071,171. As appears in said patent thecontainer is made of metal and is provided with openings adjacent thetop for the emission of the fumigating gases. The container is partiallyiilled with a combustible composition which, upon being ignited,continues to burn and evolve the fumigating gases. The composition isignited by inserting an igniter through one of the openings provided forthe emission of the fumigating gases. The combustion of the fumigatingmaterial, starting at the top of the mass thereof, progresses downwardlyto the bottom and the gases generated rise through the ash of the burnedmaterial and leave the container at the top. The fumigating device ofsaid patent might, as is taught by the prior art, have been providedwith an igniter incorporated in the container but in accordance with theteachings of the prior art, such an igniter would have been sopositioned as to ignite the body of combustible material at a pointadjacent to the gas and vapor outlet openings.

Now in accordance with my invention, I provide for the ignition of thecombustible material in the container at a point remote from the outletopenings so that the evolved gases will pass through the body of theunburned material on their-wav-tostheoutlet. In this way, the fumi. gatie.; gases. generated" by tbe; combustiuzvzi are torce away fromtheepoint afo'f fconrbustion'z and Ifro bonnet portion-onthe..ont-ainerwadiaoent tostbev'point, oi-fooinbuetion to `and @through-theco razooefofxunburned material Zinfthacontainer torthesoutlet..Asxthereombustion proceeds, the fumigatingf: eases will,` always be:`generated at -tbefilowesti temperature"createdibtfz the`combustioniwhich necessary.iorvtheirzgenerationand w' passie the.container outletsswithout be inarexposed `@tom ame-nhigherf'tellaneratureV created bytbe combustion:

Two .iiris-trativeI :embodiments: or. iumigating `par:intens ifaocordanoe f withri my: irwention-A are Sllownv:mathe-accompanying:drawingsrin which:

Fig. l is a vertical section of a container having an igniterincorporated in a recess in the bottom of the container, and

Fig. 2 is a vertical section of a container having an igniter projectingfrom the bottom of the container but 4protected by the ilange or foot ofthe container.

Referring to Fig. 1, I is the side Wall of a container formed of sheetmetal or other suitable material and having the top closure 2 and thebottom closure 3. The side Wall I is provided, adjacent its top, with aseries of openings 4 having frangible closures which may be formed byscoring the wall of the container as described in Patent No. 2,071,171.The bottom 3 of the container has the recess 6 and the downwardly eX-tending conical or pointed projection 1 which contains a suitableigniting material 8. The container is filled to a point below the levelof the openings 4 with combustible fumigating gas generating material 9.

A `variety of igniter materials which can be started by holding a matchor other source of heat to the point of the projection 1 are availablefor use, for example, a, mixture of sulfur, potassium nitrate, bentoniteand shellac or the igniter composition of powdered aluminum, powderediron, barium nitrate and glue disclosed in Patent No. 2,071,171.

A variety of combustible fumigating materials containing any volatilefumigating agent and any combustion supporting material also areavailable, for example, the compositions disclosed in said Patent No.2,071,171 and Patent No. 1,412,065.

A required characteristic of the combustible material is that it shallbe suiciently porous to permit the passage of the fumigating gas 3through it. This requirement is met if the material is in spongy orgranular form.

In the modification illustrated in Fig. 2 the bottom I0 of the containeris flat and provided with the short downwardly extending projection Iiwhich is protected from contacting the oor or other supporting surfaceby the ange 0r foot I2 of the container. Otherwise the container of Fig.2 is identical with that of Fig. 1 and the igniter composition and thecombustible fumigating composition may be the same.

It will be appreciated that the container need not be cylindrical asillustrated but may be of any other suitable shape; that it may beformed of metal or any other suitable 'material'such as wood or berboard; that it may or may not be hermetically sealed; that any othersuitable form of gas outlets may be provided and that any sideration ofthe essentials of the invention which are the following: a closedcontainer charged with a porous, gas traversable body of combustiblematerial capable of generating a fumigating gas, the container beingprovided with means for releasing the gas from the container at a pointadjacent one surface of saidbody and means for 35 Number 4 igniting saidbody adjacent another remote surface thereof.

I claim:

l. A fumigating package comprising a container, a body of porous, gastraversable combustible material capable when ignited of burning and ofliberating fumigating gases disposed within the container, meansadjacent one surface of said body for releasing gas from the' containerand means adjacent another surface of said body for igniting the samesaid container, aside from said means for releasing gas, being gastight.

2. A fumigating package comprising a container, a body of porouscombustible material filling at least the lower portion of the containerand capable when ignited of burning and of liberating a fumigating gas,means in the wall of the container above said body for releasing gasfrom the container and means adjacent the bottom of the container forigniting said body, said container, aside from said means for releasingVgas, being gas tight.

3. A'fumigating device as dened in claim 2V in which the means forigniting the body of Vcornbustible material comprises a depression inthe bottom of the container, said depressioncontaining an ignitingmaterial.

ARTHUR L'. GALLOWAY;r

REFERENCES CITED The following references are of record `in the le ofthis patent:

UNITED STATES PATENTS Name Date 860,450 Doige July' 1e, 1907

